Hand tacking-tool.



Patsnted, Apr. 8, |902. A. HEBERT. V HAND TACKING TOUL.

(Application led Hay 28, 1901.)

(Ilo Model.)

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Nrrnn Srnmns ARSENE HEBERT, OE MANCHESTER, NEW HAMPSHIRE, ASSIGNOR TO HERBERT B. NEWTON, OF HAVERHILL, MASSACHUSETTS.

. HAND TACKNG-TOOL.

SPECIFICATION forming' part Of :Letters Patent N0. 696,98, dated April 8, 1902.

Application iiled May 28,1901 Serial No. 62,253. (No model.)

.To @ZZ whom it may concern/.-

Be it known that I, ARsENE HEBERT, a sub- Ject of the King of Great Britain, and a resident of Manchester, in the county of Hills' .ments in hand 'Lacking-tools which are specially designed to be used in lasting shoes.

Prior to this invention Ihave produced various forms of tools of this character, and one of the greatest; difficulties which l have had to overcome has been the liability of the tack becoming dislodged or displaced by being thrown or jerked back in theact of striking down with the tool, thus being thrown out of position to be engaged by the end of the driving-plunger. While the construction shown in my pending application, No. 60,116-1, filed May 16, 1901, overcomes this difficulty in a satisfactory manner, yet it is open to the objection of being somewhat complicated and of having an undesirable amount offriction between the driver and spring-pressed latches. The object of the present invention is to provide a simple and perfectly effective means of preventing the tacks from being misplaced in the manner vabove referred to, which will enable the tool to be manufactured at a much less cost than any tool which I have previously produced and which is so arranged that it will be practicallyimpossible for it to get out of order, even after long-continued use. I accomplish this object by producing a form of hand tacking-tool which is similar in many respects'to the tool described in my said pending application, but which is provided With a latch which is capable of a free vertical movement to a limited extent and is adapted to be moved upwardly by the same movement, which would tend to throw the tack out of position, and by this movement prevent the tack from passing back above the end of the driver-plunger.

For a better understanding of my in vention reference is made to the accompanying drawings, in which- Figure 1 is a partial central cross-section of my device, showing the sliding part in its innermost position. Figs. 2 and 3 are similar views showing the sliding part in its outerlnost position, Fig. 3 showing the parts in the position which they assume when the workman strikes down with the tool. Eig. l is a .detail View of the rear side 4of the sliding block. Fig. 5 is a cross-section on line X X of Fig. 2. Fig. G is aplan view of the feeder. Fig. 7 is a plan View of the face of the ham- As shown in the drawings, the main body or stationary member l of the pincers is provided with the usual jaws, handles, tackmagazine, and raceway, as described in my pending application. The hammer 2 is secured firmly to the member 1, and a hollow block 3 is fitted to slide therein, said block being guided by the ribs l and 5, which engage corresponding grooves in the hammer. The feed-tube 6 is provided with a driving-` plunger or driver 7, which extends from the rear side and lower end thereof and is preferably formed integral therewith. Said tube 6 is secured to member 1, and its end rests against a shoulder thereon. A spring 8 encircles said tube 6, and one end thereof is arranged in an annular chamber in member 1 and rests against the bot-tom thereof and against a shoulder on tube 6, and the other end rests on the upper side of block 3, so thatv the spring acts constantly to throw said block outwardly. Ashoulder 300 on the hammer is adapted to engage a corresponding shoulder 30 on'the block and limit the outward movement of the latter. An upwardly-eX-- tending finger 9 is formed on the rear side of the block 3, said finger passing up through a slot in member 1 between the arms of feeder 10 and having its upper end cutoff diagonally, as shown in Fig. 4, so that each time said block is moved inwardly the inclined edge of said finger will engage an arm of the feeder and swing the same so as to feed a tack into tube 6. The feeder 10 is practically identical in form and operation to the feeder in said pending application and need not be here described in detail.

A latch or dog 12 is arranged in a narrow chamber 13, which is formed -in block 3 and leads from the passage therethrough, in which A pin the tube 6 and driver 7 `are located.

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-14 passes. through a slot 15 in said latch,

which is so arranged that said latch may move longitudinally, as well as swing on said pin 14. The edge of said latch next the feed-tube is curved, so as to form a notch or projection 16 about midway of its length, andthe lower end of said latch is formed with a toe 17, which projects gradually from a point slightly below said projection 16. A round hole 18,

of slightly-greater,diameter than the width such a depth that when said thimble is pressed into the end thereof (see Fig. 5) it will hold the toe 17 of the latch so close to the adjacent side of the passage through the block 3 that it is not possible for a tack to pass by said toe, yet it will not force the latch into actual engagement with said side, so that no friction will be created therebetween by said spring 21 which will in any way interfere with the longitudinal movement of the latch. (See Figs. 2 and 3.) A diagonally-extending projection 22 may be formed on the lower end of said latch opposite the thim ble 19 for the purpose presently to be described.

The operation of the above-described device is as follows: When a blow is struck and the block 3 is lforced in to its innermost position, the feeder 10 will be actuated to drop a tack into the tube 6. So far as this particular device is concerned it is quite immaterial whether the feeder discharges a tack just as the'block reaches its innermost position or does not discharge it until the block has reached its outermost position. In the first instance the tack would lodge'between the edge of the latch 12 and the side of driver 7, as shownin Fig. 1, and in the second instance itwould lodge between the toe 17 of the latch and the side of the passage through block 3, as shown in Fig. 2. The length of latch 12 is such that it extends above the lower end of tube 6 even when the block 3 is in its outermost position, as shown in Fig. 2, so that all possibility of the tacks being thrown out of their proper path is avoided. The position of projection 16 on the latch is such that when said latch is in its lowest position and block 3 in its outermost position it will be far enough below the end of driver 7 to leave ample space for a tack to pass between them, as shown in Fig. 2; but when the latch is moved up from this position, so that pin 14 is in the lower end of slot 15, projection 16 will then be carried so close to the driver that a tack cannot pass them, as shown in Fig. 3.

When the tack lodges between the toe 17 and the driver, as shown in Fig. 1, the projection 16 will engage the head of the tack, so

strike the next blow while the block 3 is be` ing forced out, and as the workman strikes down again the latch 12 will be thrown by reason o f its inertia into the position shown in Fig. 3, closing the space between the latch and driver, and thus preventing the tack from being thrown above the end of the driver, so that when the work is again struck the tack will be forced pastthe latch by the driver and driven into Jthe Work. As the tack is much lighter than the latch, its inertia is correspondingly less, so that the latch will always be thrown toits upper position (shown infFig. 3) before the tack can be thrown past the projection 16. Moreover, the tack is always slightly wedged between the toe 17 and the block when it drops into position, while the latchis always perfectly free to move up when the block is in its outermost position, and even if the tack and latch should move together the tack would be prevented from passing above the projection 16, as the latter is located above the position which the head of the tack assumes when it drops into position to be driven. By providing the laterally-extending projection 22 on the latch and arranging the same in such a position that it will be engaged by the thimble 19 when the latch is thrown up to the position shown in Fig. 3 the latter may be also caused to swing toward the driver, and thus more completely close the space between the projection 16 and the end of the driver. After the tack has once dropped into position to be driven itcannot become misplaced however the tool may be tipped or moved.

By having the latch perform the double function of preventing the tack from falling out of the end of the tack-passage and also of preventing it from being thrown back out of the path of the driver I am enabled to produce a more desirable construction than if these functions were performed by two separate parts, for the reason that a continuous surface is provided to guide the tack. However, I consider any sliding block which is adapted to be thrown back in the general direction of the tack-passage so that it will cross the path of the tacks through the passage to be Within the scope of my'invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is as follows:

1. A hand tacking-tool comprising a relatively fixed member and a movable member which is adapted to reciprocate with respect thereto and is provided with a tack-passage, a driving-plunger which is secured to said fixed member and is arranged in said passage, and a latch which is supported by said reciprocating member in said passage so that it may move freely in a predetermined path to- IOC IIO

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distance to permit the passage ot'a tack therebetween.

2. A hand tacking-tool comprising a relatively fixed member and a movable member which is adapted to reciprocate relative thereto, and is provided with a tack-passage, a driving-plunger which is secured to said fixed member and is located in said passage, a latch which is arranged in said passage and is connected to said reciprocating member so that it may freely slide longitudinally of said passage, a projection on said latchwhich is so arranged that when said reciprocating member and latch are in their outermost positions said projection will he far enough beyond the end of said plunger to permit the passage of a tack therebetween, and when said latch is moved inwardly with respect to said reciprocating member said projection will close the passage-way therebetween sufciently to prevent the passage of atack, and means for feeding the tacks into said passage one by one.

3. A hand tacking-tool comprising a relatively Xed member and a movable member which is adapted to reciprocate relative thereto, and is provided with a taclpassage,'a driving-plunger which is secured to said Xed member and is located in said passage, a latch which is arranged in said passage and is connected to said reciprocating member so that it may freely slide longitudinally of said passage, a projection on said latch which is so arranged that when said reciprocatingmember and latch are in their outermost positions said projection will be far enough beyond the end of said plunger to permit the passage of atack therebetween, and when said latch is -moved inwardly with respect to said reciprocating member said projection will close the passage- Way therebetween sufficiently to prevent the passage of a tack, a spring which is adapted path l to press the outer end of` said latch toward the side of said passage below the end of said plunger, a stop for said spring which prevents it from pressing said latch into actual engagement with the side of said passage,and means for feeding the tacks one by one into said passage. e

`4f. A hand Jracking-tool comprising a relatively iixed member and a movable member which is adapted to reciprocate relative thereto7 and is provided with a tack-passage, a drivingplunger which is secured to said fixed member and is located in said passage, a latch which is arranged in said passage and is connected to the reciprocating member so that it may freely slide longitudinally of said passage and swing laterally therein, a projection on the edge of said latch next the plunger at an intermediate portion thereof, said projection being so arranged with respect to the end of said plunger when said reciprocatingmember and latch arein their outermostpositions that a tack may pass between them, and will obstruct said passage of the tack when moved to its inner position with respect to said reciprocating member, means for swinging the edge of said latch below the plunger in closev proximity to but not forcibly against the adjacent side of said passage, and means for feeding` the tacks into said passage.

5. A hand tacking-tool comprising a relatively fixed member,a movable member which is adapted to reciprocate relative thereto and is provided with a tack-passagewhich extends toV its outer end, a driving-plunger.Whichis secured to said fixed member, land a latch `which is arranged in said passage in front of said plunger, is connected to said movable member, and is adapted to reciprocate freely in a predetermined path, the path of said latch being in substantially the same direction as the path of said movable member and across the path of the tacks through said passage. i e In testimony whereof I have affixed my signature in presence of two witnesses.

. ARSENE HEBERT. Witnesses:

Louis H. HARRIMAN, H. B. NEWTON. 

